ISSN:0033-7579    

DOI:10.1080/01422448208226876

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

The fission fragment fluence required to render CaUO4, Na2U2O4, MgUO4, Sr2U3O11and u3O8x-ray amorphous was deduced as ∼5 × 1015events cm3. Significant annealing of the structural damage occurred in the 300–-500°C range.

ISSN:0033-7579    

DOI:10.1080/01422448208226877

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

The motion of γ-induced defect centres in reverse biased germanium n+p diodes has been observed using deep level transient spectroscopy. The concentration profile of the Ev+ 0.38 eV centre is presented as a function of the duration of the electric field application. A mobility of 6.4 ± 3.4 × 1014cm2/v.sec at 25°C was obtained for this level, whilst a value of 2.2 ± 1.3 × 10−14cm2/v.sec at 25°C was obtained for the Ev+ 0.18 eV centre.

ISSN:0033-7579    

DOI:10.1080/01422448208226878

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Deep level transient spectroscopy has been used to observe the reduced concentrations of γ-ray induced defects in Ge containing atomic hydrogen. Data are presented on the efficiency and depth of this damage reduction as a function of the duration and temperature of the exposure of the plasma used to introduce the atomic hydrogen. A 3-hour exposure in an H plasma at 300°C before irradiation reduced the γ-induced defect concentration by half or more to a depth of ∼40 μm, compared with that of the control samples.

ISSN:0033-7579    

DOI:10.1080/01422448208226879

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

ISSN:0033-7579    

DOI:10.1080/01422448208226880

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Deep level transient spectroscopy has been used to observe the reduced concentrations of vacancy-related defects in γ-irradiated n-type Si containing hydrogen atoms. Data are presented on the efficiency and depth of this damage reduction as a function of the duration and temperature of the exposure to the plasma used to introduce the atomic hydrogen. A 3-hour exposure in an H plasma at 300°C prior to irradiation reduced the concentrations of the O-V, V-V and P-V centres by half or more to a depth of ∼20 μm, compared to the control samples.

ISSN:0033-7579    

DOI:10.1080/01422448208226881

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

The spectral-angular characteristics of Kumakhov radiation generated by channeled electrons and positrons in various crystals are considered. The optimal energy interval (up to 1–10 GeV), in which the spectral-energy density of Kumakhov radiation exceeds by a factor of 103to 104the density of bremssfrahlung is determined.

ISSN:0033-7579    

DOI:10.1080/01422448208226882

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor